FUSE FOR LOW-VOLTAGE UNDERGROUND LEAD-IN

摘要

PROBLEM TO BE SOLVED: To provide a fuse for low-voltage underground lead-in capable of maintaining water tightness for a long time without generating a crack in an outer cylinder or a cap even exposed to strong alkali water for a long period of time in a manhole or a cesspool. SOLUTION: The whole outside of the fuse for low-voltage underground lead-in is covered with a cover having good chemical-resistant. The outer cylinder 1 is covered with an electrically insulating cover 6 with good chemical-resistant. An electrically insulating cover 7 covering an outer peripheral part of a resin mold 4 is a vinyl chloride molded item with good chemical-resistant and covers from the outer peripheral part of the resin mold to the both end parts of the electrically insulating cover. An external exposed end face of the resin mold is covered with an electrically insulating sealing compound 8. COPYRIGHT: (C)2007,JPO&INPIT